Projects Page 2012-2013

  1. Home
  2. Digital Citizenship
  3. experimental design page
  4. Personal Learning Network
  5. Resources
  6. Step 1 Brainstorming a Question
  7. Step 2 Variables and Hypotheses
  8. Step 3 Design Your Experiment
  9. Step 4 Plan your experiment
  10. Step 5 Do your experiment
  11. Step 6 Background
  12. Step 7 Analyze Your Data
  13. Step 8 What does it mean?
  14. Step 9 Prepare for Presentation
  15. Tutorials



Archives
Projects 2011-2012

Schools
Kennett Middle School
Josiah Bartlett School

Teachers
  1. For Teachers
  2. Project Overview
  3. rubrics

Liquids vs Algae

Edit 0 48 …

Table of Contents

Title :

Liquids vs Algae

Problem Scenario:

my project is basied on health problems in chlorinated pools. If to much chlorine is added to a pool than people will have bad health problems and will deffently keep away algae.

Broad Question:


Can chlorine be way to strong?

Specific Question:

Will different amounts of chlorine affect the way algae grows?

Hypothesis:

I hypothesize that the lower solutions will not have any differences in growth than the higher solutions.


Graph of Hypothesis:

albu12-2-hypothesis-graph.png
this is my hypothesis graph of my prediction of how much algae will be grown

Variables:

Independent Variable:

amount of chlorine levels

Dependent Variable:

Amount of Algae growth that shows

Variables That Need To Be Controlled:

How much algae is added
How much clorine is added to the solution
Same size of container
Same amount of time
same number of samples for different amounts of chlorine solution

Vocabulary List That Needs Explanation

Spridela: A plant that grows in algae, and mulituplys fast.

General Plan

1. First i must find the measurement for chlorine to water in a pool size container, Next i need to make my solution and measure out how much solution is needed.Than i need to measure how big the container I am using in ml.
2. Fill half way of container with my measured out chlorine solution and the other half with algae. I will fill 10 containers with a small amount of solution than 10 more containers with even more solution than 10 more with more solution than 10 more i will probably have about 40 samples of containers filled with solution.
3.Than i can begin my project by make observations and taking a quick picture of the progress of algae growth every 1 or 2 weeks or so.
4. Once i get results from my exsperiment i will start create my poster and type up my results and also deleteing and perfecting observations.

Potential Problems And Solutions

If the algae does not increase in growth.

Safety Or Environmental Concerns


Experimental Design

What is your experimental unit?

This is the base unit of your experiment, for example, one plant, one ice cube, one dish. It is the thing you will be measuring.

I am measuring algae growth and how much chlorine is added

Number Of Trials:

This is how many times you will repeat the experiment.

I will repeat this experiment 6 times

Number Of Subjects In Each trial:

This is the number of different treatments you will use. For example, if you are comparing rust formation using salt and no salt, there would be 2 subjects in each trial. If you were comparing rust formation with no salt and three different amounts of salt, then you would have 4 subjects in each trial.

1 subjects in each trial

Number of Observations:

How many measurements will you take for each experimental unit times the number or trials

3 times during my experiment

When data will be collected

Looking for an actual date or dates here. This is requiring you to commit to your project.

March 3, March 3, March 7,

Where will data be collected?:

Be specific.

I will collect data and measurements and type and record them onto mwvsciencefair.wikispace.com.

Resources and Budget Table

Item
 Number needed
 Where I will get this
 Cost
algae
Mr Biche
poster board
 1
 Walmart
 5
chlorine
my home
























Detailed Procedure

1.)First I need to measure and do the math for my solutions and find the ppm for chlorine in water, I do that for 5 different solutions. Once i have made these solutions ,0.2625 with a ratio of 2:18, also 0.87083 with a ratio of 10:20, and 0.13125 with a ration of 2:38, and 0.525 with a ratio of 10:40 and finally 0.65625 with a ratio of 10:30 than I will take on of my solutions and fill three cubic containers half my with the solutions. l will repeat this step but changing solutions every three containers. But make sure the caps of the cubic containers are labeled correctly, this is what my table looks like for code labeling:

Labeling

Solutions

1/1

0.87083

2/1

0.65625

3/1

0.525

4/1

0.2625

5/1

0.13125

0/1

No Bleach
after every cubic container is filled with the correct solution I will take out some algae water from Mr. Biech's algae infected contain I will fill the other half of each cubic container with the algae and let the bleach solution and algae together.
Finally when each container is filled to the top with algae and solution and the caps are on and labeled, I will place all 18 cubic containers under a growth light.
I will take a picture at the beginning of my project and the end so people can see the differents in growth. I will measure the amount of light in each contain once like every 2 weeks and record my observations,This is how it will look at first:
Treatment
 Vial
 amount of light
first meas.
 second meas.
0
 0/1
 0.000
0
 0/2
 0.000
0
 0/3
 0.000
1
 1/1
 0.000
1
 1/2
 0.000
1
 1/3
 0.000
2
 2/1
 0.000
2
 2/2
 0.000
2
 2/3
 0.000
3
 3/1
 0.000
3
 3/2
 0.000
3
 3/3
 0.000
4
 4/1
 0.000
4
 4/2
 0.000
4
 4/3
 0.000
5
 5/1
 0.000
5
 5/2
 0.000
5
 5/3
 0.000
At the end of my project I will gather my results and observations and make a poster of them, adding my procedure, question, hypothesis and ect.

Second Procedure

For my second procedure I took 6 round glass containers, each filled halfway with different solutions my solutions are 0.87083 with a code label of 1/1, 0.65625 with a code label of 2/1, 0.525 with a code label of 3/1, 0.2625 with a code label of 4/1, 0.13125 with a code label of 5/1, and finally one filled only with water with a code label of 0/1. On the surface of each solution I will place 10 algae plants into each container. I will record date at leased three times by counting how many algae plants there are.
Solution
 Date
 Observation
0/1
 3/1
 10 algae plants
1/1
 3/1
 10 algae plants
2/1
 3/1
 10 algae plants
3/1
 3/1
 10 algae plants
4/1
 3/1
 10 algae plants
5/1
 3/1
 10 algae plants

Solution
 Date
 Observations
0/1
 3/3
 17 algae plants
1/1
 3/3
 14 algae plants
2/1
 3/3
 18 algae plants
3/1
 3/3
 19 algae plants
4/1
 3/3
 16 algae plants
5/1
 3/3
 22 algae plants




Diagram
albu12-2diagram.png
This is the diagram of the way my project will kind of look like

Photo List

I will take a picture before and after my project and also every once and awhile during my project.





Time Line
begin experiment by 2/4
experiments done 3/1
analysis 3/7
discussion/background 3/15
Wiki complete 3/15
posters complete 3/22
Kms science fair 3/29


Data Table


Treatment
 Vial
 Amount of light
First Mesurement
 Amount of light
Second Measurement
0
 0/1
 0.000
 0.000
0
 0/2
 0.000
 0.000
0
 0/3
 0.000
 0.000
1
 1/1
 0.000
 0.000
1
 1/2
 0.000
 0.000
1
 1/3
 0.000
 0.000
2
 2/1
 0.000
 0.000
2
 2/2
 0.000
 0.000
2
 2/3
 0.000
 0.000
3
 3/1
 0.000
 0.000
3
 3/2
 0.000
 0.000
3
 3/3
 0.000
 0.000
4
 4/1
 0.000
 0.000
4
 4/2
 0.000
 0.000
4
 4/3
 0.000
 0.000
5
 5/1
 0.000
 0.000
5
 5/2
 0.000
 0.000
5
 5/3
 0.000
 0.000


Date: 3/3/13
Solutions
 Observations
0/1
 17 algae plants
1/1
 14 algae plants
2/1
 18 algae plants
3/1
 19 algae plants
4/1
 16 algae plants
5/1
 22 algae plants

Date: 3/7/13
Solutions
 Observations
0/1
 25 algae plants
1/1
 22 algae plants
2/1
 24 algae plants
3/1
 28 algae plants
4/1
 31 algae plants
5/1
 36 algae plants
Observations: Most of the algae plants are dieing

Data Analysis

All Raw Data

solutions
 0
 0.87083
 0.65625
 0.525
 0.2625
 0.13125
Day 1
 10
 10
 10
 10
 10
 10
Day 3
 17
 14
 18
 19
 16
 22
Day 7
 25
 22
 24
 28
 31
 36
Day 11
 28
 29
 30
 36
 39
 43

Graphs

albu12-2-results-graph.png

Photos

albu-12-2-pic-of-algae.jpg
First try these are fill half with algae and half with bleach
albu12-2-solution-1.jpg
Solution 1/1- Second try- fill half way with solutions with 10 algae plants resting on top picture 1
albu12-2-solution-2.jpg
solutions 2/1- picture 1

albu12-2-solution-3.jpg
solution 3/1- picture 1
albu12-2-solution-4.jpg
solution 4/1- picture 1
albu12-2-solution-5.jpg
solution 5/1- picture 1

albu12-2-solution-0-pic-group.jpg
solution 0/1- picture 2
albu12-2-solution-1-pic-2.jpg
solution 1/1- picture 2
albu12-2-solution-2-pic2.jpg
albu12-2-solution-3-pic2.jpg
solution 3/1- picture 2

albu12-2-solutions-4-pic2.jpg
solution 4/1- picture 2
albu12-2-solution-5-pic2.jpg
solution 5/1- picture 2

Results

During this experiment I measure the amount of algae growth in six different amounts of chlorine. Initially the solutions with the most amount of chlorine-0.87083 and 0.65625- had the least amount of algae growth, except one miss leading thing was that, the solution with absolutely no chlorine, had the least amount of growth. The solutions that had the most amount of growth were the solutions with the least amount of chlorine-0.525, 0.2625, 0.13125.

Conclusion

My hypothesis was that the lower solutions will not have any difference in growth then the higher solutions,based on the evidence from my experiment I choose to reject my hypothesis because although the algae plants grew in both lower and the higher solutions, the higher solutions 0.87083 and 0.65625 had less growth. The higher solutions may be to strong and cause health problems but it kills the algae, so either 0.87083 or 0.65625 wold be the better amount of chlorine to use.

Discussion

The best amount of chlorine solution to use would be 0.87083, because it kills the most algae but would give you serious health problems. My first experiment ended in a fail, but what I would have done differently would be using a stronger thicker algae. I immediately started another experiment using a plant called spiradela instead of algae. In this experiment, I was able to get a conclusion. To improve my second experiment, I would have had more samples. Because for some reason, my control variable which had no chlorine in it at all, had the least amount of growth, which does not seem right, since chlorine wasn't present to kill the algae. The control variable should have had the most growth. My experiment question was, does different amounts of chlorine effect the way algae grows. The answer to my question would be a definite yes, because large amounts of chlorine will decrease algae count, but will cause people to receive serious health problems.


Benefit to Community and/or Science

My experiment would help people avoid health problems by informing people who use large amounts of chlorine what the right amount that should be used.

Background Research

Some website say that chlorinated pools may cause asthma, respiratory problems and a bigger risk of cancer. Also if you stay in a hot tube to long the chlorine will absorb into your pores get into your blood stream,and you might experience irritated skin, itchy rashes, a very weak pulse, numbness in the limbs, nausea, heart palpitations and extreme dizziness.So extreme use of chlorine may be very dangerous, that is why I wanted to do my own experiment for how much chlorine is to much or not enough.

References

Abstract

What I was trying to find out was, will the amount of chlorine effect the way algae grows. I had to restart but in the end I found out that 0.87083 is probably the best amount of chlorine to use in a pool. I found this by mixing 5 different amounts of chlorine with ten algae plants, and letting them sit under a growth light for about four weeks. Once I had made my results graph I found that 0.87083 was the one that was best to use. This solution is the strongest and will most likely cause people health problems if there is to much chlorine in there bodies, but it would be better to kill the algae and have to deal with the health problems.